Physical arguments related with the existence of black hole solutions havin
g a nontrapping interior are discussed. Massive scalar fields interacting w
ith gravity are considered. Interior asymptotic solutions showing a scalar
field approaching a constant value at the horizon are given. It is argued t
hat the coupled Einstein-Klein-Gordon equations can be satisfied in the sen
se of the generalized functions after removing a particular regularization
designed for matching the interior solution with an external Schwarzschild
space-time. The scalar field appears as just avoiding the appearance of clo
sed trapped surfaces while coming from the exterior region. It also follows
that the usual space integral over T-0(0) in the internal region just give
s the total proper mass associated to the external Schwarzschild solution,
as it should be expected.